mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
1.2 KiB
59 lines
1.2 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
|
/* |
|
* Copyright (C) 2010 Thomas Chou <[email protected]> |
|
*/ |
|
#ifndef _ASM_IRQFLAGS_H |
|
#define _ASM_IRQFLAGS_H |
|
|
|
#include <asm/registers.h> |
|
|
|
static inline unsigned long arch_local_save_flags(void) |
|
{ |
|
return RDCTL(CTL_FSTATUS); |
|
} |
|
|
|
/* |
|
* This will restore ALL status register flags, not only the interrupt |
|
* mask flag. |
|
*/ |
|
static inline void arch_local_irq_restore(unsigned long flags) |
|
{ |
|
WRCTL(CTL_FSTATUS, flags); |
|
} |
|
|
|
static inline void arch_local_irq_disable(void) |
|
{ |
|
unsigned long flags; |
|
|
|
flags = arch_local_save_flags(); |
|
arch_local_irq_restore(flags & ~STATUS_PIE); |
|
} |
|
|
|
static inline void arch_local_irq_enable(void) |
|
{ |
|
unsigned long flags; |
|
|
|
flags = arch_local_save_flags(); |
|
arch_local_irq_restore(flags | STATUS_PIE); |
|
} |
|
|
|
static inline int arch_irqs_disabled_flags(unsigned long flags) |
|
{ |
|
return (flags & STATUS_PIE) == 0; |
|
} |
|
|
|
static inline int arch_irqs_disabled(void) |
|
{ |
|
return arch_irqs_disabled_flags(arch_local_save_flags()); |
|
} |
|
|
|
static inline unsigned long arch_local_irq_save(void) |
|
{ |
|
unsigned long flags; |
|
|
|
flags = arch_local_save_flags(); |
|
arch_local_irq_restore(flags & ~STATUS_PIE); |
|
return flags; |
|
} |
|
|
|
#endif /* _ASM_IRQFLAGS_H */
|
|
|